Introduction
The Honeywell RM7890A1056 Burner Module is an advanced microprocessor‑based flame safeguard and burner control unit engineered for reliable performance in industrial and commercial combustion systems. Designed to automate the safe start‑up, operation, and shutdown of gas, oil, or combination fuel burners, this module integrates essential safety sequences, flame monitoring, and diagnostic capabilities into a compact, service‑ready package. Its precise control logic and rugged construction make it ideal for boilers, furnaces, heaters, and other heat‑producing equipment in demanding environments.
Technical Specifications
| Specification | Description |
|---|---|
| Model | RM7890A1056 Burner Module |
| Module Type | Primary Burner Control / Flame Safeguard Unit |
| Application | Automatic burner start, safety, and sequencing |
| Operating Voltage | 120 VAC (+10 /‑15 %) |
| Frequency | 50 Hz / 60 Hz |
| Flame Detection | Intermittent or continuous pilot options |
| Control Logic | Microprocessor‑based automatic sequencing |
| Safety Actions | Lockout, retry, fault history retention |
| Flame Input | Compatible with standard flame sensor inputs |
| Operating Temperature Range | −40 °C to +60 °C |
| Storage Temperature Range | −40 °C to +85 °C |
| Mounting | Subbase required (panel or wall) |
| Dimensions | Approx. 127 × 127 × 133 mm (with subbase) |
| Weight | ~0.8 kg |
| Certifications | UL, CSA, FM industrial safety approvals |
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